What you need

Check your Adobe authentication using Windows

Make sure your computer is properly authorized.In ADE, go to Help > Authorization Information.Note: If this option is grayed out, please authorize your computer before continuing.The authorization window will open and show you what credentials you're currently using on your computer.

Check your Adobe authentication using a Mac

Make sure your computer is properly authorized.In ADE, go to Help > Authorization Information.Note: If this option is grayed out, please authorize your computer before continuing.The authorization window opens and shows you what credentials you're currently using on your computer.

Locate the folder .adobe-digital-editions and delete it.Note: If you don't see this folder, it may be hidden, in which case you'll need to follow these steps to view hidden files on a Mac and then delete the folder.

What you need

Check your Adobe authentication using Windows

Make sure your computer is properly authorized.In ADE, go to Help > Authorization Information.Note: If this option is grayed out, please authorize your computer before continuing.The authorization window will open and show you what credentials you're currently using on your computer.

Check your Adobe authentication using a Mac

Make sure your computer is properly authorized.In ADE, go to Help > Authorization Information.Note: If this option is grayed out, please authorize your computer before continuing.The authorization window opens and shows you what credentials you're currently using on your computer.

Locate the folder .adobe-digital-editions and delete it.Note: If you don't see this folder, it may be hidden, in which case you'll need to follow these steps to view hidden files on a Mac and then delete the folder.